Name that
Biogeochemical Cycle
Biogeochemical Cycle
Released back into the atmosphere through burning fossil fuels and cellular respiration
Carbon Cycle
Identify the level below which the ground is saturated with water
Water table
Place 0.00025 into scientific notation
2.4 x 10-4
May displace many people, fill with sediment needed by soil, could overflow and expose people to severe flooding
Dams and/or reservoirs
A term that describes:
plowing and planting crops in rows across, rather than up and down, the sloped contour of the land.
Contour farming
Does not include a gaseous or atmospheric phase
Phosphorus cycle
Name the surface area above an aquifer that supplies water to the aquifer.
Recharge zone
(1.11 x 10-5 )(6.0 x 109 )
6.66 x 104
-Produces no pollution that can contaminate the environment
-power is intermittent
-can be built offshore
Wind power/ Wind turbines
Term that describes:
plant areas or strips with nutrient-depleting crops (corn, tobacco, cotton) one year; the next year plant the same area w/ legumes (whose nodules add nitrogen to the soil, i.e. soybeans, oats, barley, rye, or sorghum)
Crop rotation
The major reservoirs or "sinks" include plant matter, terrestrial biosphere, sedimentary deposits, and oceans.
Carbon Cycle
Correct the equation
The total amount of precipitation = amount of evaporation + amount of runoff - the amount of infiltration
The total amount of precipitation = amount of evaporation + amount of runoff + the amount of infiltration
1 acre = 0.405 hectares 1 mi2 = 640 acres
A 100 square mile area of a national forest is how many acres? how many hectares?
25,920 hectares
-energy can be used very efficiently for practical uses such as heating and lighting
-renewable resource
-Nighttime and cloudy days seriously limit the amount of energy produced
Solar energy/ Photovoltaic power
Term that describes
a process whereby the productive potential of arid or semiarid land, falls by 10% or more
Desertification
Fossil fuel combustion has contributed to a sevenfold increase. In the atmosphere, it is a precursor of tropospheric ozone production
Nitrogen cycle
Which cycle has the most immediate effect on acid precipitation would be the...
Sulfur cycl
1 metric ton (tonne) = 1 x 103 kg
Fifty-eight thousand kilograms of solid waste is equivalent to how many metric tons?
50 metric tons
-produces no harmful by-product
-Once a plant is built, it is generally self-sufficient energy-wise
-Improper drilling into the earth can release hazardous minerals and gases
Geothermal Energy
Term that describes
Irrigation water not absorbed into the soil evaporates, leaving behind a thin crust of dissolved salts in the topsoil.
Salinization
Essential for the production of nucleotides, building blocks of DNA. Its sink is in sedimentary rocks
Phosphorus cycle
Which of the following is NOT a primary depository for the element listed? Identify it and provide the correct depository.
a. Carbon- coal
b. Nitrogen- nitrogen gas in the atmosphere
c. Phosphorus- marble and limestone
d. Sulfur- deep ocean deposits
Phosphorus, primary sinks are ocean sediments and certain islands rich in guano
% change = ((final-initial)/initial) x 100
Calculate the percentage growth rate for a country with a population of 6 million in a year in which it had 100,000 births, 70,000 deaths, 30,000 immigrants, and 50,000 emigrants.
0.16% or .17% change
- It has been estimated that the world produces some 34,000m3 of waste each year, waste that takes years to degrade
-cheaper to run than their coal or gas rivals
Nuclear energy
Term that describes:
farmers apply large amounts of irrigation water to leach slats deeper into the soil. 1/10 of irrigated land suffers.